CN220771190U - Air duct assembly and range hood with same - Google Patents

Abstract

The utility model discloses an air duct assembly and a range hood with the same, wherein the air duct assembly is used for the range hood and comprises a first air box, the bottom of the first air box is connected with a second air box, the bottom of the second air box is provided with an air suction opening, a pressure equalizing cavity which enables rapid air flow sucked by the air suction opening to be fully mixed with air is formed in the second air box, the length of the pressure equalizing cavity is larger than that of the air suction opening, the front side wall and the rear side wall of the pressure equalizing cavity are gradually expanded outwards along the air suction opening, and when the pressure equalizing cavity is far away from the air suction opening, the cross section area of the pressure equalizing cavity on a horizontal plane is larger, so that the range hood can better discharge oil smoke, and the level of the smoke sucked by the range hood is further improved.

Description

Air duct assembly and range hood with same

Technical Field

The utility model relates to the technical field of range hoods, in particular to an air duct assembly and a range hood with the same.

Background

In the current daily life, a kitchen is basically provided with a range hood, and the range hood can suck the smoke in the kitchen in the cooking process; however, in the prior art, smoke can diffuse in a kitchen, and the range hood cannot be timely sucked away, so that the problems of choking and the like of personnel in the kitchen are caused, and the human health is damaged. Accordingly, there is room for improvement in the above-described techniques.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide an air duct assembly, which can better exhaust the oil smoke, and further raise the level of the oil smoke sucked by the range hood.

The utility model further provides a range hood with the air duct assembly.

According to the embodiment of the utility model, the air duct assembly is used for a range hood and comprises a first air box, the bottom of the first air box is connected with a second air box, the bottom of the second air box is provided with an air suction opening, a pressure equalizing cavity which enables rapid air flow sucked by the air suction opening to be fully mixed with air is formed in the second air box, the length of the pressure equalizing cavity is longer than that of the air suction opening, the front side wall and the rear side wall of the pressure equalizing cavity are gradually expanded outwards along the air suction opening, and when the pressure equalizing cavity is far away from the air suction opening, the cross section area of the pressure equalizing cavity on a horizontal plane is larger.

According to the air duct assembly, oil smoke can be better discharged, and the cleanliness level of the range hood is further improved.

According to one embodiment of the utility model, the second air box comprises a bottom plate, left and right side plates arranged on two sides of the bottom plate, a front inclined side plate and a rear inclined side plate which are outwards and upwards expanded along the front end and the rear end of the bottom plate, wherein the front end of the front inclined side plate is provided with a vertical front side plate, and the rear end of the rear inclined side plate is provided with a vertical rear side plate; the first bellows is including setting up in the preceding wallboard of all around, back wallboard and set up the side wall board in the left and right sides, the back curb plate with back wallboard is connected, the top surface of controlling the curb plate is less than the bottom surface of side wall board, control the curb plate with be equipped with the slope roof between the side wall board, the slope roof is used for connecting control the curb plate with the side wall board.

According to the air duct assembly provided by the embodiment of the utility model, the bottom plate, the left side plate, the right side plate, the front inclined side plate, the rear inclined side plate, the inclined top plate, the front side plate and the rear side plate jointly form the pressure equalizing cavity, the top surface of the front side plate is lower than the bottom surface of the front wall plate, the width of the pressure equalizing cavity is smaller than the width of the inner cavity of the first air box, a bearing plate which extends outwards and bears oil stains dropped by the smoke exhaust fan is arranged between the front side plate and the front wall plate, and the inner wall surface of the bearing plate is an inclined surface capable of guiding the oil stains on the inner side wall of the first air box to flow.

According to the air duct assembly, the first air box and the second air box are thin-wall boxes, and the width of the pressure equalizing cavity is 50% -70% of the width of the inner cavity of the first air box; the air suction inlet is arranged between the left side plate and the right side plate.

According to the air duct assembly of the embodiment of the utility model, the cross section area of the pressure equalizing cavity is far larger than that of the air suction inlet, and the air flow sucked by the air suction inlet flows into the pressure equalizing cavity and is uniformly mixed with air in the pressure equalizing cavity.

According to the air duct assembly provided by the embodiment of the utility model, the front wall plate, the rear wall plate and the side wall plate jointly enclose a smoke exhaust channel, the smoke exhaust fan is arranged in the smoke exhaust channel, the bottom of the smoke exhaust fan is provided with the oil dripping area, the oil dripping area is positioned above the bearing plate, the bearing plate can bear oil stains dripped in the oil dripping area, and the front side and the rear side of the second air box are respectively provided with an arc-shaped transition area capable of guiding the oil stains to flow.

According to the air duct assembly provided by the embodiment of the utility model, the air suction opening is in a narrow and long shape, the length of the air suction opening is larger than that of the inner cavity of the first air box, the first air box is provided with the smoke outlet, the inner cavity of the first air box is communicated with the pressure equalizing cavity, a negative pressure area is formed at the air suction opening, and air sucked by the air suction opening flows into the inner cavity of the first air box after flowing through the pressure equalizing cavity and is discharged through the smoke outlet.

According to the range hood of the second aspect of the utility model, the range hood is provided with the air duct assembly according to any one of the first aspect, and further comprises a top cover assembly, wherein the top cover assembly comprises an air suction panel, a front plate, a rear plate, a top plate and side plates positioned on two sides, an opening for the second air box to pass through is formed in the top plate, and a through hole matched with the air suction opening is formed in the air suction panel.

Further, a heating kitchen range is arranged below the range hood, ascending heat convection is generated by heating the heating kitchen range, cool air on the front surface of the range hood is attracted and mixed with the heat convection and ascends, enters the negative pressure area and then is mixed with air in the pressure equalizing cavity, and then enters the smoke exhaust channel and is pressurized and exhausted by the smoke exhaust fan; the oil suction device comprises an air suction panel, and is characterized in that a gap is arranged between the top plate and the inclined top plate, oil leakage holes adjacent to the through holes are further formed in the air suction panel, and an oil cup used for receiving oil stains flowing out of the oil leakage holes is detachably connected to the air suction panel.

Further, the heating stove is a gas stove, the heating stove introduces gas and burns with oxygen in the surrounding air to form ascending heat flow, and the heat flow is mixed with the lateral air and the cool air on the front surface of the range hood from the outside to form a trapping cyclone; the trapping cyclone rotates upwards and enters the negative pressure area so as to be pressurized and discharged by the smoke exhaust fan.

According to a second aspect of the present utility model, a range hood is provided with a duct assembly as described in any one of the first aspects. The range hood has the same advantages as the air duct assembly compared with the prior art, and the description is omitted here.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic structural view of an air duct assembly according to an embodiment of the present utility model;

fig. 2 is a schematic view of a structure of a range hood according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view at A in FIG. 2;

FIG. 4 is a cross-sectional view at B in FIG. 2;

fig. 5 is a schematic two-diagram of a range hood according to an embodiment of the present utility model;

fig. 6 is a schematic three-view of a range hood according to an embodiment of the present utility model;

fig. 7 is a schematic structural four-diagram of a range hood according to an embodiment of the present utility model.

Reference numerals:

100-range hood;

10-a first bellows; 11-a front wall panel; 12-a rear wall panel; 13-side wall panels; 14-a receiving plate; 15-a smoke outlet;

20-a second bellows; 21-a bottom plate; 22-left and right side plates; 23-front oblique side plates; 231-front side panel; 24-rear inclined side plates; 241-rear side panel;

30-an air suction port; 31-negative pressure zone;

40-equalizing cavity;

50-tilting the top plate;

60-a smoke exhaust fan;

70-a top cap assembly; 71-an air suction panel; 72-front plate; 73-through holes; 74-top plate; 741-gap; 75-oil leakage holes;

80-oil cup.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

An air duct assembly according to an embodiment of the present utility model is described below with reference to fig. 1-7. As shown in fig. 1, the air duct assembly according to the embodiment of the utility model is used for a range hood 100, specifically, the air duct assembly may include a first air box 10, a second air box 20 is connected to the bottom of the first air box 10, further, an air suction port 30 is provided at the bottom of the second air box 20, a pressure equalizing cavity 40 capable of fully mixing rapid air flow sucked by the air suction port 30 with air is formed in the second air box 20, and oil smoke can be better discharged through the pressure equalizing cavity 40, so that the level of the fume sucked by the range hood is improved. Specifically, the length of the pressure equalizing cavity 40 is greater than that of the air suction inlet 30, so that the oil smoke sucked from the air suction inlet 30 can enter the pressure equalizing cavity 40 better, the oil smoke can be discharged better, the level of the oil smoke sucked by the range hood 100 is further improved, and the cleanliness of a kitchen is further improved. Further, the front and rear side walls of the pressure equalizing cavity 40 gradually expand outwards along the air suction inlet 30, and further, when the pressure equalizing cavity 40 is far away from the air suction inlet 30, the cross-sectional area of the pressure equalizing cavity 40 on the horizontal plane is larger, so that the oil smoke sucked from the air suction inlet 30 can enter the pressure equalizing cavity 40 better, the oil smoke can be discharged better, and the level of the oil smoke sucked by the range hood 100 is improved, so that the cleanliness of a kitchen is improved.

According to the air duct assembly provided by the utility model, the oil smoke can be better discharged, so that the level of the fume sucked by the range hood 100 is improved, and the cleanliness of a kitchen is improved.

According to the duct assembly of an embodiment of the present utility model, as shown in fig. 1, the second bellows 20 includes a bottom plate 21, left and right side plates 22 disposed at both sides of the bottom plate 21, and front and rear inclined side plates 23 and 24 outwardly expanding upward along both front and rear end portions of the bottom plate 21, so that the smoke can be better discharged by disposing the outwardly expanding front and rear inclined side plates 23 and 24, thereby improving the level of smoke sucked by the range hood 100, and thus improving the cleanliness of a kitchen. Further, the front end of the front inclined side plate 23 is provided with a vertical front side plate 231, and the rear end of the rear inclined side plate 24 is provided with a vertical rear side plate 241.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.

Further, as shown in fig. 4, the first bellows 10 includes front and rear wall plates 11, 12 and side wall plates 13 provided on both left and right sides, further, rear side plate 241 is connected to rear wall plate 12, top surfaces of left and right side plates 22 are lower than bottom surfaces of side wall plates 13, further, an inclined top plate 50 is provided between left and right side plates 22 and side wall plates 13, and inclined top plate 50 is used for connecting left and right side plates 22 and side wall plates 13.

In the description of the present utility model, "plurality" means two or more.

According to the air duct assembly of the embodiment of the utility model, as shown in fig. 4, the bottom plate 21, the left side plate 22, the right side plate 22, the front inclined side plate 23, the rear inclined side plate 24, the inclined top plate 50, the front side plate 231 and the rear side plate 241 together form the pressure equalizing cavity 40, further, the top surface of the front side plate 231 is lower than the bottom surface of the front wall plate 11, the width of the pressure equalizing cavity 40 is smaller than the width of the inner cavity of the first air box 10, further, a bearing plate 14 which extends outwards and bears grease from the smoke exhaust fan 60 is arranged between the front side plate 231 and the front wall plate 11, the inner wall surface of the bearing plate 14 is an inclined surface capable of guiding grease from the inner side wall of the first air box 10 to flow, and the bearing plate 14 is arranged as an inclined surface, so that the grease is more favorable for exhausting the grease, and further, the level of the fume is sucked by the range hood 100 is improved, and the cleanliness of a kitchen is improved.

According to the air duct assembly of the embodiment of the utility model, the first air box 10 and the second air box 20 are thin-wall boxes, so that the light weight level of the range hood 100 is facilitated. Further, the width of the equalizing cavity 40 is 50% -70% of the width of the inner cavity of the first bellows 10; for example, in one particular embodiment, the width of the plenum 40 may be 60% of the width of the interior cavity of the first windbox 10. Further, the suction port 30 is provided between the left and right side plates 22.

In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.

The air duct assembly according to an embodiment of the present utility model, as shown in fig. 3, has a cross-sectional area of the equalizing cavity 40 that is much larger than that of the suction port 30, which is more advantageous for exhausting the oil smoke, thereby improving the level of the oil smoke being sucked by the range hood 100. Further, the air flow sucked by the suction port 30 flows into the equalizing cavity 40 and is uniformly mixed with the air in the equalizing cavity 40.

According to the air duct assembly provided by the embodiment of the utility model, the front wall plate 11, the rear wall plate 12 and the side wall plate 13 jointly form a smoke exhaust channel, and the smoke exhaust fan 60 is arranged in the smoke exhaust channel, so that under the rotation of the smoke exhaust fan 60, the oil smoke generated in a kitchen is exhausted from a smoke exhaust port along the smoke exhaust channel, and the damage of the oil smoke to the body of cooking staff can be reduced. Further, the bottom of the smoke exhaust fan 60 is provided with an oil dripping area, the oil dripping area is located above the bearing plate 14, and the bearing plate 14 can bear oil stains dripped in the oil dripping area, so that the oil stains can be better collected, and the cleanliness level of the range hood 100 is further improved. Further, the front side and the rear side of the second bellows 20 are respectively provided with an arc-shaped transition area capable of guiding the flow direction of the oil stain.

In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

According to the air duct assembly of the embodiment of the utility model, the air suction inlet 30 is in a narrow and long shape, and further, the length of the air suction inlet 30 is longer than that of the inner cavity of the first air box 10, so that the exhaust of oil smoke is facilitated, and the cleanliness of a kitchen is improved. Further, the first bellows 10 is provided with a smoke outlet 15, the inner cavity of the first bellows 10 is communicated with the pressure equalizing cavity 40, a negative pressure area 31 is formed at the air suction inlet 30, and further, air sucked by the air suction inlet 30 flows to the inner cavity of the first bellows 10 after passing through the pressure equalizing cavity 40 and is discharged through the smoke outlet 15, so that the smoke is discharged more conveniently, and the level of the smoke sucked by the smoke exhauster 100 is further improved.

In summary, according to the air duct assembly of the first aspect of the present utility model, the oil smoke can be better discharged, so as to improve the level of the fume sucked by the range hood 100, and thus improve the cleanliness of the kitchen.

According to the range hood 100 of the second aspect of the present utility model, as shown in fig. 7, the range hood 100 further comprises a top cover assembly 70, further, the top cover assembly 70 comprises an air suction panel 71, a front plate 72, a rear plate, a top plate 74 and side plates positioned at two sides, further, an opening for the second air box 20 to pass through is arranged on the top plate 74, a through hole 73 matched with the air suction port 30 is arranged on the air suction panel 71, and by arranging the through hole 73 matched with the air suction port 30 on the air suction panel 71, the range hood 100 can better discharge oil smoke, and further, the level of the fume sucked by the range hood 100 is improved, so that the kitchen cleanliness is improved.

Further, a heating stove is arranged below the range hood 100, the heating stove heats to generate ascending heat convection, cool air on the front surface of the range hood 100 is attracted and mixed with the heat convection to ascend, enters the negative pressure area 31 and then is mixed with air in the pressure equalizing cavity 40, and then enters the smoke exhaust channel and is pressurized and exhausted by the smoke exhaust fan 60; further, a gap 741 is arranged between the top plate 74 and the inclined top plate 50, oil leakage holes 75 adjacent to the through holes 73 are further formed in the air suction panel 71, oil cups 80 for receiving oil stains flowing out of the oil leakage holes 75 are detachably connected to the air suction panel 71, and the oil cups 80 are detachably arranged, so that the oil materials flowing out of the range hood 100 can be better cleaned and collected, and the cleanliness of a kitchen is further guaranteed.

Further, the heating stove is a gas stove, the heating stove introduces gas to burn with oxygen in the surrounding air to form ascending heat flow, and further, the heat flow is mixed with lateral air and cool air on the front surface of the range hood 100 from the outside to form a trapping cyclone; further, the cyclone is caught to rotate upwards and enters the negative pressure area 31 to be pressurized and discharged by the smoke exhaust fan 60, so that the smoke can be better discharged, the level of the smoke sucked by the smoke exhaust fan 100 is improved, and the cleanliness of a kitchen is improved.

In summary, the range hood 100 according to the second aspect of the present utility model has the advantage of higher smoke exhaust level.

Other configurations, such as cooktops, etc., and operation of the range hood 100 according to embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The utility model provides an air duct assembly for lampblack absorber, its characterized in that, includes first bellows, first bellows bottom is connected with the second bellows, second bellows bottom is equipped with the inlet scoop, form in the second bellows and make the inspiratory pressure equalizing cavity that quick air current of inlet scoop can fully mix with air, pressure equalizing cavity's length is greater than the length of inlet scoop, pressure equalizing cavity's front and back lateral wall is followed inlet scoop department outwards expands gradually, pressure equalizing cavity is being more far away from when the position of inlet scoop, pressure equalizing cavity's cross-sectional area is big more on the horizontal plane.

2. The air duct assembly of claim 1, wherein the second air box comprises a bottom plate, left and right side plates arranged on both sides of the bottom plate, a front inclined side plate and a rear inclined side plate which are outwardly and upwardly expanded along front and rear end portions of the bottom plate, wherein a front end of the front inclined side plate is provided with a vertical front side plate, and a rear end of the rear inclined side plate is provided with a vertical rear side plate; the first bellows is including setting up in the preceding wallboard of all around, back wallboard and set up the side wall board in the left and right sides, the back curb plate with back wallboard is connected, the top surface of controlling the curb plate is less than the bottom surface of side wall board, control the curb plate with be equipped with the slope roof between the side wall board, the slope roof is used for connecting control the curb plate with the side wall board.

3. The duct assembly of claim 2, wherein the bottom plate, the left and right side plates, the front inclined side plate, the rear inclined side plate, the inclined top plate, the front side plate and the rear side plate together form the pressure equalizing cavity, the top surface of the front side plate is lower than the bottom surface of the front wall plate, the width of the pressure equalizing cavity is smaller than the width of the inner cavity of the first air box, a receiving plate which extends outwards and receives grease from the smoke exhaust fan is arranged between the front side plate and the front wall plate, and the inner wall surface of the receiving plate is an inclined surface capable of guiding the grease from the inner side wall of the first air box to flow.

4. The air duct assembly of claim 3, wherein the first air box and the second air box are thin-walled boxes, and the width of the pressure equalizing cavity is 50% -70% of the width of the inner cavity of the first air box; the air suction inlet is arranged between the left side plate and the right side plate.

5. The duct assembly of claim 4, wherein the pressure equalizing chamber has a substantially larger cross-sectional area than the suction port, and wherein the air flow drawn in by the suction port flows into the pressure equalizing chamber and is uniformly mixed with air in the pressure equalizing chamber.

6. The air duct assembly of claim 5, wherein the front wall plate, the rear wall plate and the side wall plate together enclose a smoke exhaust channel, the smoke exhaust channel is internally provided with a smoke exhaust fan, the bottom of the smoke exhaust fan is provided with an oil dripping area, the oil dripping area is positioned above the bearing plate, the bearing plate can bear oil stains dripped in the oil dripping area, and the front side and the rear side of the second air box are respectively provided with an arc-shaped transition area capable of guiding the oil stains to flow.

7. The air duct assembly of claim 6, wherein the air suction opening is in a narrow and long shape, the length of the air suction opening is greater than that of the inner cavity of the first air box, the first air box is provided with an exhaust port, the inner cavity of the first air box is communicated with the pressure equalizing cavity, a negative pressure area is formed at the air suction opening, and air sucked by the air suction opening flows to the inner cavity of the first air box after flowing through the pressure equalizing cavity and is discharged through the exhaust port.

8. The range hood comprises the air duct assembly according to any one of claims 1 to 7, and further comprises a top cover assembly, wherein the top cover assembly comprises an air suction panel, a front plate, a rear plate, a top plate and side plates positioned on two sides, an opening for the second air box to pass through is formed in the top plate, and a through hole matched with the air suction opening is formed in the air suction panel.

9. The range hood according to claim 8, wherein a heating cooker is arranged below the range hood, the heating cooker generates ascending heat convection, cool air on the front surface of the range hood is sucked and mixed with the heat convection to ascend, enters the negative pressure area and then is mixed with air in the pressure equalizing cavity, and then enters the smoke exhaust channel and is pressurized and exhausted by the smoke exhaust fan; the oil suction device comprises an air suction panel, and is characterized in that a gap is arranged between the top plate and the inclined top plate, oil leakage holes adjacent to the through holes are further formed in the air suction panel, and an oil cup used for receiving oil stains flowing out of the oil leakage holes is detachably connected to the air suction panel.

10. The range hood according to claim 9, wherein the heating cooker is a gas cooker, the heating cooker introduces gas and oxygen in ambient air to burn to form ascending heat flow, and the heat flow is mixed with lateral air and cool air on the front surface of the range hood from outside to form a trapped cyclone; the trapping cyclone rotates upwards and enters the negative pressure area so as to be pressurized and discharged by the smoke exhaust fan.